Crews C2320AF Stryker Goggle, Indirect Vent, Elastic Strap, Clear Anti-Fog Lens Stryker safety goggles by MCR Safety provide excellent chemical splash protection at an economical price Treated with MCR Safety's exclusive Duramass AF4 anti-fog coating Easy adjusting strap design offers each user a personal fit Indirect vent system to yield clearer vision much longer These safety goggles meet or exceed the ANSI Z87.1 safety standards